Well, it's too early to evaluate whether I've done the right thing, but I've made the decision and pulled the trigger.
I did not get quotes from FarEast, despite Paul's advice and confidence on my part that they would have been reasonable. This was based not on any boat-related criteria, simply a desire to support domestic production.
I did not get quotes for laminates because they're both outside my budget and clear overkill for how I sail. So, it was strictly cross-cut vs. triradial, both using woven polyester fabrics.
I ended up getting quotes from Precision in Vancouver, Mack in Florida, Quantum from their designated rep to INA (Doug Burtner in Rochester), and the local Ullman Sails representative.
At a later point, when I have a chance to put together as close as I can to an apples to apples comparison, I'll write them up. I got quotes from most (but not all) for both cross-cut and tri-radial in woven polyester. Tri-radial in general seems to add about $1000 USD over cross-cut across the board.
I ended up going with Ullman for a woven polyester tri-radial. The numbers may change after they do precise measurements this upcoming Wed, but the quote based on expected dimensions was $4722 USD.
To be honest, the factors that influenced my choice most were intangibles. Ullman built a tri-radial for my sailing buddy Phil LeVine's N36 that looks beautiful. They're local and will handle some of the lifting and hauling that my back was not looking forward to. A number of the sailmakers sent me pictures of both types that they'd done for others, and I noticed wrinkles on their brand new crosscuts that I didn't see on the same makers' tri-radials.
I am guessing/gambling that the tri-radial will last long enough for me to be happy even if it doesn't last as long as a cross-cut.
Based on my plan to live to 100, I'm hoping this'll be the next-to-last, rather than the last, sail that I buy. I'm curious about tri-radial. This way, if I'm wrong about next-to-last, at least I won't die wondering if I missed something just to save money. (Of course, I may instead die knowing for sure I made the wrong choice -- but since there's so many other cases of that already, another one won't add much.)
I'll write up more details about the purchase, installation and initial impressions over the next (with luck) 6-8 weeks, and will try to follow up with one-, five-, ten-, and (maybe?) fifteen- year updates.